Combined roller and ball bearing.



F. H. RISLEY.

COMBINED ROLLERAND BALL BEARING.

APPLICATION mso JUNE 8. 1914.

Ll Patented Aug. 10, m5.

3 SHEETS-SHEET l.

71 Fligi Invest-"for fiederlck H. 'Slg/ IF. H. RLSLEY. coMBLNEn ROLLERAND BALL BEARING. vAPPL'ICATION FILED IUNE 8L 1914.

Patented Aug. 10, 1915.

3 SHEETS-SHEET 2.

F. H. RISLEY. COMBINED ROLLER AND BALL BEARING. APPucMmNflLEo1uNE8.1914.

lymg. Mamma@ 10,1915.

3 SHEETS-SHEET 3` In verd/oz* rammelen n?. msnm?, or snarfrrn,Was-ninemsn j CDMBINEX RQLLEIH, AND BALL BEAR/ENG.

Liften To all whom it vmay concern:

, Be it known that l, Fnnonmon lvl. ltisnnr, citizen of the VUnitedStates, and resident 'offSea-ttle, King county, lVashinton, haveinvented certainnevv and useful lmprovements-ingCombined Roller and BallBean.

`1 llOIl. o

)My invention-relates to journal bearings ings, ofyvlaich the followingis a speciiica- 14)v andconsists of improvements in combined' .ball 'androller bearings.

The object of my invention is to produce a bearing of 'this characterVWhich-Will beef .i 'y superior Wearing/quality, produce less fric- "15tion, and otherwise be simpler and ybetter than other bearings whicharein common 'ilvyvinventicn comprises certain novelY'parte'andicombinations which will bederlsoijih'ed` and illustrated, and`more particularly deined inthe claims."

` ln the :accompanying drawings l 'have "shown my inventionI embodied inthe form -v 25, Figure l showsthe members which consti-v tuteithebearing '1n an axial section.- Fig. 2

through 4one of the rollers, with its asso-` 'ciat'ed balls adjacent,but removed from the -85 sockets at the end of the roller. Fig. 6 is asection through .the outer casing,shovv1ng the oil distributing groovesin theouter trackway.. 3

, My invention is adapted for use in any o kind of bearing where thereduction of frio y vtional resistance is desirable. For this reason Ihave not shown the bearing'as asso- Qiated vvith parts of any othermechanism.

except as an aXle is shown. in F l. @ne of e5 the principal uses 'teWhich this bearing would naturally be-applied is for Wheels ofautomobiles. The bearing, as herein shown,

is complete and selfcontained and h s no relation to the specificconstruction of the two .50 relatively rotative members between which itconstitutes the bearing, except that each is 'provided with a seatadapted lto receive and `hold vits respective part of the bearing.

, ,lllhen-jused as a bearing for' a vehicle Wheel,

i5 'said :parts would. be the axle andthe wheel hub. v

` .Specificationof Lettera intent.

inner roll-traclway l0 and the' latter hava complementaryroll-traclivrayv 2O of larger diameter, and facing the trackway 10.

Patented eine". if, llr Application filed lune 8, 1514.. SerielNo. e.

These two trackways are evenly spaced apart, by a series of rolls 3, ofsuch size as to iitsnugly against both traclrway surfaces. Theconstruction of the individual rolls is shown in Fig. 5. Each has aspheroidal cavity in each end, an axial bore 32 connecting the endcavities, and a bore 31 connecting' this axial bore With its outerperiphery. Associated with these rolls are balls l which are of a sizeto snugly fit the cavities' 30 inthe ends of the rollers, and which formthe moving parte of the axial or thrust bearing. To retain these ballsand rolls in proper relativ/e position, and also to facilitate theirremoval as a. Whole from the bearing, lprovide two retainer rings 40,

vbut'of less diameter than the'dia-meter of theJ balls, so that theballs can not pass therethrough. These two rings are secured in fixedrelation, as by` connecting bars or rods el. By such means a casing isprovided for the-rollers and balls which hol-ds them inl assembledrelation and permits their re- .moval as a Whole Without displacement ofany part in the assembly.

The inner member l of the bearing which .irries the, inner roll-trackwayalso carries two ball racevvay segments l1. Eoth of these shouldpreferably be made detachable from the member l, as by threading themthereon, as is shown `in Fig. l. One or" these might, under someconditions, be made integral with the member l, although l prefer in themajority of cases to make them bot-h separable. The outer casing 2 is'also provided With-two ball racevvay segments. f

@ne of these, 21, l have shown as formed integral with thev casing,While the other 22,

vis in the form of a ringscrewingj into the casing. l prefer that theline of division between the racevvay 'segments which are carried by theinner and outer members l and 2 should be coincident in position withthe circle which passesI through the center of the balls, as is shown inFig. l, f

' I have provided means by which the rings 22 andV maybe held in variousadjusted pos'tions.. as may be required by slight yvarir. l workmanship,and by Wear of the parts, zip-.neil as by individual ideas of thecloseness of adjustment which is desirable. Upon the line where the ring22 joins with the outer casing 2l provide a series of holes 5, which areone-half in the casing 2 and one-half in. the ring A thin strip G ofmetal is secured atone end by'a pivot pin 50 toy the ring22. lts otherend carries a locking pin 61, which is short in lengt-h, and of a sizeto snugly fit the holes 5. The bar 6 is of such character that its outerend, or that end which carries the pin Gl may be sprung or lifted upenough to free the pin from the hole which it may occupy. "When this isdone the bar 6 may be .moved to one side enough to cause vthe pinto restupon the surface of the ring 22, or into the position indicated bydotted lines in Fig. 2. ln this posi tion the ring 22 may be turned inthe casing to adjust the same. yWhen the pin Gl occupies one of theholes 5 the ring is prevented from turning .in the casing. I prefer toprovide the ring 22 with a recess 24. of such size as will accommodatethe bar 6 in both positions, thus making the outer surface of the bar 6correspond with the outer surface of the ring 22.. The inner ring l] islocked in position by similar means.

It is evident that the member upon which is mounted the bar 6 whichcarries the'locking pin (5.1, need have but one of the holes 5, as thevpin could enter only one, but that'the other member should have a seriesof said holes. As a matter of convenience of production, it mightbedesirable to bore each member at the same time, as has been Ashown inFig. 2. y t

In placing a bearing of this kind in a Wheel, the wheel hub would needto have a recess which would receive the outer rolltrackway member 2,and the end of the axle be of a size to fit within the bore of the innery trackway member l. It is not intended that .either of these shouldturn upon their` respective wheel or axle member, although it is notnecessary to take any especial'means to prevent this. The friction inthe bearing is so much less than between these other surfaces, that allmovement will be confined to such roller bearing members. Ti

I prefer to provide the outer rolltraclr way surface, 2O with slightgrooves 23 which extend in a general helical direction fromV near theouter ends of this surface to the center thereof, the object of thesebeing to distribute the oil or grease over said surface. The angularposition of these grooves should correspond with the direction ofprincipal rotation of the bearing, so that the fefectof rolling movementof the rolls over. this surface would be to force the oil or lubricantlengthwise these `grooves and'in a direction from the outer edges of thesurface toward the center. The chamber which contains the rollers andthe balls would be provided with j a. considerable quantity oflubricant, which ,sie

, would-be of apaste or grease-like consistency. This lubricant 'wouldbe worked thoroughly through all parts of the bearing. In the rolling ofthe rollers over their track- Ways, the grease would be forced into theradial holes and out through the axial bores, thus keeping the ballseats thoroughly lubricated. This chamber may belmade'suiiiciently tightas to have the spaces contained in this chamber practically filled' withlubricant.

The parts of the bearing should .be so dimensioned that the retainerrings Ll() will not have rubbing contact with any part of the bearingexcept the balls. rlhe bearing thus becomes strictly a floating bearing.

By securing the end-thrust bearing rinWe directly upon the rollertrackway'inembers, the bearing` is made self -contaiined and may hetaken out of a wheel and replaced by another, or placed in anotherwheel. By making the roller trackway members, which members alsoconstitute the casing, separate and detachable from thek wheel and laxlemembers, it is possible to make each part ofthe grade of material whichis best adapted to its respective function and the conditions which itwill be subjected. For instance, the roller traelrway members should bemade of a. high temper and hard, which would malte them 'liable to breakif subjected to the strains to which the axle is subjected, while theaxle may bemade of a low temper and of material which is resistant tostrains und shocks and not likely to break.

`What I claim as my invention and desire tol patent is:

1. ln shearing, in combination, inner and outer rings having inner andouter roller traclrways formed thereon, rollers fitting beltween saidtrz-iclrwaysand provided 4with bell-seating recesses intheir endsyballsin said end recessesfbores connecting said ball seating recesses with asingle. point in the periphery of each roller, and end-thrust bearingsfor said balls.'A Y

2. in a` bearing, in combination, innerand outer rings having inner andouter roller traclrways formed thereon, rollers fitting be tween saidtraclrways and each having ballseating recesses inits ends and anaxial-bore. connecting-said recesses, and also having a single boreextending from its periphery to said axial bore,'balls in the endrecesses, and end thrust members engaged by sai-d hails.

3. ln a bearing, in combination, two con-v centric rings having innerend outer roller traekways formed thereon and adaptedfor, conjointinsertion within and removal from a wheel, rollers 'iitting between seidtrackways, each having a ball-seating recess in 'eachiend balls in saidrecesses, a ball-spacing ring for each set of balls, and endthrustbearing rings carried by the traclrwey rings and engaging said balls.

4. In a bearing, in combination, two concentric rings serving as rollertrackways and adapted for conjoint insertion and withdrawal from awheel, rollers fitting between said rings A.and having ballseatingrecesses in their ends, bals in said recesses, a ballspacing ring foreach set of balls, and endthrust bearing rings for said balls carriedupon theroller trackway rings and adjustable axially thereon.

5. In a bearing, combination, two concentric rings serving as inner andouter roller tracki 'ays', rollers fitting between said trackways andhaving ball-seatin recesses in their ends, b alls seating in sairecesses, ball-retaining rings having holes through which said ballsproject outwardly, means securing said rings together in fixed relation,end-thrust bearing rings engagingthe outer surfacesr of said balls andcarried'directly from the roller trackway rings, said end-thrust bearingrings at one end of the bearing being threaded upon the trackway ringsto be adjustable thereon lengthwise Athe bearing.

.6. In a bearing, combination, two concentric rings serving as rollertrackways, one of these being adapted to lit over an axle member and theother to be secured within a socket in a wheel, -rollers fitting betweensaid trackway rings and'having ball-seating l recesses 1n their ends,balls 1n said receses,}

spacing means for said balls and rollers, andl end-thrust bearing .ringscarried by the trackway rings and -closing the chamber sisting of a barpivoted upon one of the rel-y atively adj ustabl'e members, the other ofsaid relatively adjustable members havmg a series of holes in its facehaving one side -ex` tending to the line between said relativelyadjustable members and the member to which said bar is pivoted having alike complemental hole in its edge, and a pin car ried by said lockingbar and adapted to enter said holes in the relatively adjustablemembers. v

8. In a bearing, in combination, two concentric rings serving as innerand outer roller trackways, rollers fitting between said rings, andhaving ball-seating recesses in their ends, balls seating in saidrecesses in the rollers, end-thrust bearing rings carried from thetrackway rings and engaging said balls, said trackway rings and theendthrust bearing rings having a series of holes extending inward fromtheir outer end faces and overlapping the line joining them, a pinadapted to enter said holes when they are brought into registry, andmeans for yieldingly supporting said pin lfrom one of said rings. i

9. In a bearing, in combination, two concentric rings serving as innerand outer roller trackway rings, rollers fitting between said traclnvayrings, balls serving as end-thrust bearing members for the rollers,end-thrust` bearing rings screw-threaded respectively upon the inner andthe outer trackway rings to secure adjustment axially of the bearing,each of said attached bea-ring rings having,

one a series of holes extending to the line vjoining said rings and theother a complemental hole smularly located to register with any one ofthe holes of said series, a

pin adapted to'enter said holes to lock the two rings against turning, abar pivoted upon' the ring which has said complemental locking hole andcarrying the locking pin,

said ring being recessed to receive saidbar. 10. In a roller bear1ng,1ncombination, two

concentric rings spaced apart and serving respectively as inner and asouter roller trackways, rollers fitting between said trackway rings, endthrust bearing ring/s secured to each end of said rings and overlappingthe roller chamber, a flanged cap fitting snu'ly o ver Athe v.outerring, and means for hol ing said cap in place from the axle.

In testimony whereof I have hereunto afiixed my signature this 1st dayof June 1914.

FREDERICK H. RISLEY.

lVitnesses PnNRosn P. MCELWAIN, CHARLES L. REYNOLDS.

susl

